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Magnetar Explosions May Be Responsible for Up to 10% of the Gold in the Milky Way, Researchers Say
Scientists confirm that bursts of radiation from magnetars, the most extreme neutron stars in the universe, are capable of forging vast amounts of gold, platinum, and even uranium in seconds. This discovery changes everything that was previously known about the origin of the most valuable metals in the cosmos.
Cosmic Radiation Bursts Shake Old Theories About the Origin of the Universe’s Heaviest Metals
A radiation burst detected in space is causing scientists to rethink everything that was known about the origin of metals like gold, platinum, and uranium. Researchers led by Brian Metzger from the Flatiron Institute’s Computational Astrophysics Center discovered that the violent explosions of magnetars can generate these precious metals in a matter of seconds. The amount? Billions upon billions of kilograms in a single event.
An Explosion and Tons of Gold: What Are Magnetars?
Magnetars are hyper-compact neutron stars, with more mass than the Sun compressed into a sphere just 20 km wide. Their magnetic field is the most intense in the universe, trillions of times stronger than anything known on Earth. Getting close to one is impossible, but if it were, its mere presence could disrupt surrounding atoms. It is in this absurd environment that the rarest elements in the universe are born.
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How Magnetars Generate Rare Metals in Seconds
During their explosions, these stars release energy in the form of X-rays and gamma rays, at levels so high that they even affect satellites on Earth. A single eruption can produce up to two million billion billion kilograms of heavy elements. These explosions are compared to true cosmic factories, where neutrons collide with lighter elements and create atoms like gold and uranium.
According to Metzger, this is only the second time science has seen direct evidence of where these metals originate. The process, known as the “r-process,” occurs in extremely dense environments filled with free neutrons, exactly like in magnetar explosions.
The New Origin of Gold and the Revolution in Astronomy
Previously, it was believed that gold and other heavy metals predominantly came from supernovae or neutron star mergers. The recent discovery, however, shows that magnetar eruptions may be responsible for up to 10% of these metals in our galaxy.
This type of explosion is still rare and difficult to capture in real-time, but there have been significant records, such as the event observed in December 2004. At that time, telescopes detected a gamma flare minutes after the explosion, which scientists now believe to be the cooling of newly-formed heavy elements.
The Impact of These Discoveries on the Future of Science
In practice, understanding how gold comes into existence in the universe is not just a scientific curiosity. These metals are foundational to modern technologies, from smartphones to space systems. The discovery also explains why some metals appear earlier than expected in young galaxies: magnetars act before other cosmic events.
And most fascinatingly: it is possible that some of the gold used today in chips or rings came from the fury of a magnetar billions of years ago.
What’s Next: Upcoming Eruptions and Tracking with New Telescopes
Future missions like the Compton Spectrometer and Imager from NASA, scheduled for 2027, are expected to allow more precise monitoring of these phenomena. With modern instruments sensitive to various wavelengths, scientists hope to capture new eruptions in real-time.
By observing the radioactive glow and isotopes formed in the explosion, it will be possible to learn more about how matter evolves in the universe. And perhaps, finally unveil all the secrets of stellar gold.
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